I shook my Imp in a Ball and asked if the pre-Cataclysm patch 4.0.1 would be dropping on Tuesday and he said, "Yes, but if anyone asks ... It wasn't me who told you." Then Blizzard representative Rishgur announced on the forums that we would be having extended maintenance from midnight until noon on Tuesday, Oct. 12. Coincidence? I think not. It's so blatant that even Kaylee Switchgear, our maintenance graphic gnome, thinks we're having a patch.
Could some random bug crop up between now and then to crush the hopes and dreams of those of us preparing for a 4.0.1 Tuesday? Sure, but that could happen with just about any patch. What we do know is that realms will be down for 12 hours and Cataclysm is only a month and a half away.
Be sure to tune into WoW Insider during the downtime to brush up on your 4.0.1 patch information and all of the class-revamping, reforging, prime-glyphing, guild-member-capping, Azeroth-shattering information.